nova/tools/xenserver/destroy_cached_images.py
Davanum Srinivas af2d6c9576 Switch to using oslo_* instead of oslo.*
The oslo team is recommending everyone to switch to the
non-namespaced versions of libraries. Updating the hacking
rule to include a check to prevent oslo.* import from
creeping back in.

This commit includes:
- using oslo_utils instead of oslo.utils
- using oslo_serialization instead of oslo.serialization
- using oslo_db instead of oslo.db
- using oslo_i18n instead of oslo.i18n
- using oslo_middleware instead of oslo.middleware
- using oslo_config instead of oslo.config
- using oslo_messaging instead of "from oslo import messaging"
- using oslo_vmware instead of oslo.vmware

Change-Id: I3e2eb147b321ce3e928817b62abcb7d023c5f13f
2015-02-06 06:03:10 -05:00

69 lines
1.9 KiB
Python

"""
destroy_cached_images.py
This script is used to clean up Glance images that are cached in the SR. By
default, this script will only cleanup unused cached images.
Options:
--dry_run - Don't actually destroy the VDIs
--all_cached - Destroy all cached images instead of just unused cached
images.
"""
import eventlet
eventlet.monkey_patch()
import os
import sys
from oslo_config import cfg
# If ../nova/__init__.py exists, add ../ to Python search path, so that
# it will override what happens to be installed in /usr/(local/)lib/python...
POSSIBLE_TOPDIR = os.path.normpath(os.path.join(os.path.abspath(sys.argv[0]),
os.pardir,
os.pardir,
os.pardir))
if os.path.exists(os.path.join(POSSIBLE_TOPDIR, 'nova', '__init__.py')):
sys.path.insert(0, POSSIBLE_TOPDIR)
from nova import config
from nova import utils
from nova.virt.xenapi import driver as xenapi_driver
from nova.virt.xenapi import vm_utils
destroy_opts = [
cfg.BoolOpt('all_cached',
default=False,
help='Destroy all cached images instead of just unused cached'
' images.'),
cfg.BoolOpt('dry_run',
default=False,
help='Don\'t actually delete the VDIs.')
]
CONF = cfg.CONF
CONF.register_cli_opts(destroy_opts)
def main():
config.parse_args(sys.argv)
utils.monkey_patch()
xenapi = xenapi_driver.XenAPIDriver()
session = xenapi._session
sr_ref = vm_utils.safe_find_sr(session)
destroyed = vm_utils.destroy_cached_images(
session, sr_ref, all_cached=CONF.all_cached,
dry_run=CONF.dry_run)
if '--verbose' in sys.argv:
print '\n'.join(destroyed)
print "Destroyed %d cached VDIs" % len(destroyed)
if __name__ == "__main__":
main()